Hey dude... with pig out do you mean eat 1 day (only one per week or every 2 weeks) eat what you want? Or the usual cheatmeal? What has worked the best for you?
Most of the time I have my guys eat cheat meals once a week and all day long. Just don't stuff yourself to the point where you can't eat your next meal, but eat what ever you want. Burgers, fries whatever. Mainly calorically dense foods with plently of carbs and fats.